The Siemens 3KX8150-0AG is a Fuse Cover accessory for the Siemens Superswitch 3KL8/3KA8 switch-disconnector range. The exact article is specified as a 4-pole fuse cover for the 3KL81 Superswitch family and is available for DIN/BS fuse configurations. Siemens accessory documentation identifies 3KX8150-0AG as a Fuse Cover, not as an auxiliary switch.
Important product-identification note: the supplied title describes this SKU as “Auxiliary switch (1NO+1NC)”, but Siemens documentation lists 3KX8150-0AG under Fuse Cover, 4P. The 1NO+1NC auxiliary switch for the 3KL81/3KA81 range is 3SB5400-0A.
For SB Smart, the accurate product page should therefore identify 3KX8150-0AG as a Siemens Superswitch Fuse Cover, rather than a 1NO+1NC auxiliary switch.
The 3KX8150-0AG belongs to the Siemens Superswitch accessory range and is designed for compatible 3KL81 switch-disconnector configurations. Siemens accessory documentation lists the article under the Fuse Cover category with a 4-pole configuration and DIN/BS fuse compatibility.
The cover provides the designated protective covering for the fuse section of the compatible Superswitch assembly.
The exact 3KX8150-0AG is the 4-pole fuse-cover variant for the 3KL81 family.
Siemens lists the 3KL81 fuse-cover range with:
3KX8150-0AE – 2P
3KX8150-0AG – 4P
The installed Superswitch pole configuration should be checked before ordering.
Siemens' accessory table identifies 3KX8150-0AG under the DIN/BS fuse category for the 3KL81 family.
This means the correct fuse-system configuration should be confirmed before selecting the accessory.
The 3KX8150-0AG is suitable for the Siemens 3KL81 Superswitch family. Current product listings identify it as a 3KL81 4P Fuse Cover.
The exact switch-disconnector article should be checked before procurement to ensure mechanical compatibility.
The main purpose of the 3KX8150-0AG is to cover the fuse section of the compatible Superswitch.
A correctly fitted fuse cover can help:
Cover the fuse area
Reduce accidental access to internal conductive components
Maintain the intended switchgear configuration
Support a protected electrical assembly
Provide the correct mechanical accessory for the switch-disconnector
The actual protection level depends on the complete Siemens assembly and installation.
For the 3KL81/3KA81 Superswitch family, Siemens documentation identifies 3SB5400-0A as the Auxiliary Switch (1NO+1NC).
Therefore:
3KX8150-0AG = Fuse Cover
3SB5400-0A = Auxiliary Switch (1NO+1NC)
These two articles should not be treated as interchangeable.
A fuse cover is a mechanical protective accessory for the fuse compartment, while an auxiliary switch provides additional electrical contacts for signaling or control applications.
The 3KX8150-0AG does not serve the same function as the 3SB5400-0A auxiliary switch.
This distinction is important for correct product selection and accurate SB Smart cataloguing.
Siemens lists multiple accessories for the 3KL81 family, including:
3KX8150-0AE – Fuse Cover, 2P
3KX8150-0AG – Fuse Cover, 4P
3KX8151-0AE – Terminal Cover, 2P
3KX8151-0AG – Terminal Cover, 4P
3KX8153-0AE – Phase Barrier
3SB5400-0A – Auxiliary Switch, 1NO+1NC
3KX8154-0AC – Auxiliary Switch Cover
8UC6114-1BB00 – Front Drive (Handle)
This standardized accessory range helps select the required component by function.
The 3KX8150-0AG can be relevant for compatible:
Industrial switchboards
Electrical distribution panels
Superswitch assemblies
Low-voltage power-distribution equipment
Fuse switch-disconnector installations
Industrial switchgear
Electrical maintenance and replacement applications
It should only be installed with the specified compatible Siemens Superswitch.
The 3KX8150-0AG can be useful when an existing 4-pole fuse cover on a compatible 3KL81 Superswitch is damaged, missing or requires replacement.
Before ordering, verify:
Exact Superswitch model
Number of poles
Fuse-system type
Accessory article number
Mechanical compatibility
This is important because Siemens provides different accessory articles for different Superswitch families and configurations.
Published Siemens pricing documentation lists the accessory with a standard package quantity of 1.
This makes the article suitable for individual maintenance and replacement procurement.
The Siemens 3KX8150-0AG is relevant for:
Electrical panel builders
Industrial buyers
Maintenance departments
Electrical contractors
Switchgear assemblers
Electrical product dealers
Replacement-part procurement
For SB Smart, the product is positioned around industrial electrical product supply and procurement, without claiming automation integration or automation-service work.
Siemens Superswitch 3KL8/3KA8 accessory
Article number 3KX8150-0AG
Fuse Cover
4-pole
DIN/BS fuse configuration
Compatible with 3KL81 Superswitch
Designed for the fuse section
Suitable for industrial switchgear assemblies
Standard package quantity: 1
4-pole compatibility: Designed for the corresponding 4-pole Superswitch configuration.
DIN/BS compatibility: Suitable for the specified fuse-system configurations.
Fuse-area protection: Provides the designated cover for the fuse section.
3KL81 compatibility: Designed specifically for the relevant Siemens Superswitch family.
Replacement friendly: Useful when an existing cover is damaged or missing.
Standardized Siemens accessory: Simplifies identification and procurement.
Single-unit packaging: Convenient for individual maintenance requirements.
The Siemens 3KX8150-0AG is a dedicated 4-pole Fuse Cover for the Siemens 3KL81 Superswitch, with compatibility listed for DIN and BS fuse configurations. Siemens accessory documentation clearly differentiates it from the 1NO+1NC auxiliary switch, 3SB5400-0A.
For SB Smart, the correct product positioning is therefore Siemens 3KX8150-0AG Fuse Cover for Superswitch, rather than an auxiliary switch.
SB Smart supplies Siemens industrial electrical products and accessories across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.
Major delivery locations include:
Faridabad
Delhi
Gurgaon/Gurugram
Delhi NCR
Noida
Greater Noida
Haryana
Punjab
Mumbai
Pune
Ahmedabad
Bengaluru
Hyderabad
Chennai
Kolkata
Jaipur
Chandigarh
Lucknow
Indore
Surat
Vadodara
Nagpur
Coimbatore
And other major cities across India
The 3KX8150-0AG is a Siemens 4-pole Fuse Cover accessory for the 3KL81 Superswitch family.
The exact article is the 4-pole fuse-cover version.
It is associated with the 3KL81 family.
No. Siemens identifies it as a Fuse Cover.
The corresponding article is 3SB5400-0A.
Siemens lists the 3KX8150-0AG under the DIN/BS fuse category.
It provides the specified protective cover for the fuse section of the compatible Superswitch.
The published pricing documentation specifies 1 unit.
Yes, provided the existing switch-disconnector is a compatible 3KL81 configuration.
SB Smart supplies Siemens industrial electrical products and Superswitch accessories in India for industrial buyers, panel builders, maintenance requirements and replacement procurement.
| Parameter | Specification |
|---|---|
| Product Series | Siemens Superswitch 3KL8 / 3KA8 |
| Model Number | 3KX8150-0AG |
| Product Type | Auxiliary Switch Block |
| Contact Type | 1NO + 1NC |
| Function | Switch position indication (ON/OFF feedback) |
| Mounting Type | Direct attachment on switch disconnector |
| Application | Control & monitoring circuits |
| Compatible Devices | 3KL8 / 3KA8 series |
| Rated Voltage (control) | Up to 250V AC (typical) |
| Rated Current | Low-current auxiliary duty |
| Material | Industrial thermoplastic housing |
| Brand | Siemens |
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